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Bielecka, L.; Zmijewska, M.I.; Szymborska, A. (2000). A new predatory cladoceran Cercopagis (Cercopagis) pengoi (Ostroumov 1891) in the Gulf of Gdansk. Oceanologia 42(3): 371-374, meer
Zmijewska, M.I.; Bielecka, L.; Grabowska, A. (2000). Seasonal and diel changes in the vertical distribution in relation to the age structure of Microcalanus pygmaeus Sars and Ctenocalanus citer Bowman & Heron (Psedocalanidae, Copepoda) from Croker Passage (Antarctic Peninsula). Oceanologia 42(1): 89-103, meer
Zmijewska, M.I.; Niemkiewicz, E.; Bielecka, L. (2000). Abundance and composition of plankton in the Gulf of Gdansk near the Gdansk-Wschód sewage treatment plant discharge. Oceanologia 42(3): 335-357, meer
